May 1944: Princess Elizabeth wearing a summer dress and sunhat in the grounds of Windsor Castle.

Photo: Lisa Sheridan, Getty Images

February 1952: An official picture of when Princess Elizabeth acceded to the throne, becoming Queen, and wearing some impressive jewels.

Photo: APIC/Getty Images

December 1953: Talk about a long train! Her Majesty at her wedding to the Duke of Edinburgh.

Photo: Keystone/Getty Images

March 1954: Queen Elizabeth II on the balcony of Government House, Melbourne, during her tour of Australia.

Photo: Fox Photos/Hulton Archive/Getty Images

April 1954: The Queen in a floral-patterned dress for a tour of Aden, Yemen.

Photo: Universal Picture Group/Getty Images

November 1954: Queen Elizabeth dancing with Air Marshal Sir John Baldwin, at a ball held at the Hyde Park Hotel, London, 26th November 1954. The ball celebrated the centenary of the Battle of Balaclava.

Photo: Dennis Oulds via Getty Images

June 1956: Queen Elizabeth II in Sweden, wearing a lot of pearls and an interesting hat.

Photo: M. McKeown, Hulton Archive/Getty Images

January 1960: The Queen wearing a classic jacket as she stands with Prince Charles and Prince Edward at Windsor castle.

Photo: Anwar Hussein, Getty Images

July 1965: Queen Elizabeth II wore a vibrant coat and hat at Ventnor during a royal visit to the Isle of Wight.

Photo: Fox Photos/Getty Images

January 1969: The Queen, in a fuchsia dress, walks beside U.S. President Richard Nixon.

Photo: Hulton Archive, Getty Images

January 1973: Now that is glamour: from the intricate pattern, to the fur and crown, there's not much else we can ask for!

Photo: Tim Graham, Getty Images

February 1977: Queen Elizabeth looks like she's ready for spring in this plaid dress and bright hat.

Photo: Serge Lemoine, Getty Images

July 1982: Navy and white is always in style, and we appreciate the small pattern on her dress mixed with the bold lines of the hat.

Photo: Tim Graham, Getty Images

October 1986: Queen Elizabeth II stands out in robin's egg blue during a visit to Hong Kong.

Photo: Tim Graham, Getty Images

May 1993: The Queen and Prince Philip attend a formal banquet, the queen in a bright pink gown and a very expensive -- and we expect heavy -- accessory on her head.

Photo: Tim Graham, Getty Images

March 1995: The Queen visited South Africa and wore a bright yellow hat with this patterned dress.

Photo: Tim Graham, Getty Images

November 1998: London must be chilly in November! The Queen wore this large fur coat as she left the House of the Lords.

Photo: Johnny Eggitt, Getty Images

November 2002: The Queen and Prince Philip attend the premiere of the "Die Another Day" James Bond flick, dressed to impress!

Photo: Nicolas Asfouria, AFP/Getty Images

November 2003: U.S. President George W. Bush is formally welcomed to the U.K. by the Queen, dressed here in a lilac coat and hat.

Photo: Kristy Wigglesworth, AFP/Getty Images

June 2004: The Queen's hats keep getting better and better, and we love the top hat vibe this one has for Trooping the Colour.

Photo: James Quinton, WireImage/Getty Images

June 2005: A lady in pink always shows up men in black (though they look quite dapper as well!).

Photo: Tim Graham, Getty Images

October 2005: Her Majesty looked stunning in this white coat to visit the Tynemouth Volunteer Life Brigade Watch House and Museum.

Photo: Anwar Hussein, WireImage/Getty Images

May 2006: Queen Elizabeth II attends the Order of the Bath service, dressed in traditional garments, and looking lovely.

Photo: Anwar Hussein, Getty Images

June 2006: The Queen looks chic in this dress as she and Prince Philip attend a performance at the Royal Opera House.

Photo: Tim Graham, Getty Images

May 2007: The Queen dials up the fun of this look by wearing vibrant, neon pink in her accents, paired with a lavender wool coat.

Photo: Chris Jackson, Getty Images

October 2007: Her Majesty attends the State Banquet at Buckingham Palace, dressed in silk.

Photo: John Stillwell, AFP/Getty Images

June 2008: The Queen hosts a garden party at Buckingham Palace, and we're loving the sheer umbrella.

Photo: Tim Graham, Getty Images

October 2008: The Queen wore this intricately patterned dress during a two-day tour of Slovenia.

Photo: Chris Jackson, Getty Images

December 2008: The Queen attends the Christmas Day church service, looking lovely in a holiday-themed outfit.

Photo: Chris Jackson, Getty Images

June 2009: Her Majesty knows how to accessorize, and we can't get enough of her great looks!

Photo: Indigo/Getty Images

November 2010: The Queen wore this floral dress during a visit to Abu Dhabi.

Photo: Julian Parker, UK Press/Getty Images

April 2011: Prepping for the royal wedding in style, the Queen attends a dinner in this metallic and periwinkle gown.

Photo: Danny Martindale, WireImage/Getty Images

May 2011: Dashing leaders! Looking stunning in an embellished dress, Queen Elizabeth prepares to attend a State Banquet with U.S. President Barack Obama.